cvs2svn: Got Malformed RCS delta error while reproducing newer revison file from older revision file. about cvs2svn HOT 2 OPEN

Thanks for the careful report and the research. Your conclusions could be corroborated if you try converting the same file, first with the --use-rcs and then with the --use-cvs option, to see if those conversions give the result that you expect. If they do, then that's pretty conclusive proof that the --use-internal-co version needs to be adjusted. If they fail, or if they give different results, then the analysis might need to be adjusted.

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Thank you for the suggestion. Both of with --use-rcs option and with --use-cvs option, cvs2svn produced as I expected, all r1.1 to r1.5 rivision of irregular.txt file checkout correctly from converted repository as r3 to r7.

Diff of dump files with CVS and with RCS are just UUID and svn:date of r1.

--- irregular-rcs-test-cvs-dump.txt     2021-12-02 19:59:31.895085000 +0900
+++ irregular-rcs-test-rcs-dump.txt     2021-12-02 19:59:46.421823000 +0900
@@ -1,6 +1,6 @@
 SVN-fs-dump-format-version: 2
 
-UUID: 7caf5ac0-5e53-ec11-9708-001c4272a9f0
+UUID: 78e207b6-5e53-ec11-9708-001c4272a9f0
 
 Revision-number: 0
 Prop-content-length: 56
@@ -9,7 +9,7 @@
 K 8
 svn:date
 V 27
-2021-12-02T10:58:16.104635Z
+2021-12-02T10:57:58.781240Z
 PROPS-END
 
 Revision-number: 1

And with --use-internal-co,

With the incomplete Subversion repository irregular-rcs-test-broken.svn, r1.1 to r1.4 revision files of irregular.txt exactly equal to ones of original CVS repo's.

This was incorrect. Only r1.1 == r3 was the same. All other revisions are broken.

After applying PR #19, cvs2svn with --use-internal-co successfully convert the repository, and its dump file differ only repos UUID and svn:date of r1.

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